Technological breakthroughs in the early twenties allowed manufacturers to push the boundaries of mechanical capability. When asking how fast did cars go in 1920, one finds that most mass-produced models reached 40 to 45 mph. These advancements were crucial in demonstrating that motorized travel could outpace traditional horse-drawn methods. https://www.amerifreight.net/blog/1920s-cars-the-icons-that-redefined-driving